961594290 has 48 divisors (see below), whose sum is σ = 2647216728. Its totient is φ = 241340928.

The previous prime is 961594253. The next prime is 961594321. The reversal of 961594290 is 92495169.

961594290 is a `hidden beast` number, since 9 + 615 + 9 + 4 + 29 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 869837049 + 91757241 = 29493^2 + 9579^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 312717 + ... + 315776.

Almost surely, 2^961594290 is an apocalyptic number.

961594290 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

961594290 is an abundant number, since it is smaller than the sum of its proper divisors (1685622438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

961594290 is a wasteful number, since it uses less digits than its factorization.

961594290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628523 (or 628520 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 45.

The square root of 961594290 is about 31009.5838411289. The cubic root of 961594290 is about 987.0306189939.

The spelling of 961594290 in words is "nine hundred sixty-one million, five hundred ninety-four thousand, two hundred ninety".